Antimony telluride homologous superlattices with two to four antimonene layers exhibit a saddle point and associated van Hove singularity near the M-point, driven by Sb and Te pz orbital hybridization.
Persson, Materials Data on Sb 2Te3 (SG:166) by Ma- terials Project (2015), an optional note
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Evolution of the Saddle Point in Antimony Telluride Homologous Superlattices
Antimony telluride homologous superlattices with two to four antimonene layers exhibit a saddle point and associated van Hove singularity near the M-point, driven by Sb and Te pz orbital hybridization.